Bioacoustics review of Anatolian species of the predatory bush-cricket genus Saga (Orthoptera: Tettigoniidae: Saginae) with the description of a new species
Author
Şirin, Deniz
Author
Taylan, Mehmet Sait
Author
Sevgili, Hasan
Author
Mol, Abbas
text
Zootaxa
2019
2019-09-02
4664
1
83
102
journal article
25820
10.11646/zootaxa.4664.1.3
41df8811-1d93-450e-91ad-3f312805e1d3
1175-5326
3383536
36982CFC-0AE5-486D-832E-09A25EC4688F
Saga cappadocica
Werner, 1903
Distribution:
This species is endemic to
Anatolia
(
Ramme 1951
;
Kaltenbach 1964
,
1967
). It was recorded from inner
Anatolia
(
Figure 1A
) of it (
Uvarov 1934
;
Ramme 1951
:
Karabağ 1958
;
Kaltenbach 1964
,
1967
;
Karabağ
et al
. 1971
,
Şirin
et al
. 2014
;
Heller 2016
;
Mol
et al
., 2016
).
FIGURE 1.
Distribution map (A) and male calling song of
Saga cappadocica
(B—phrase series, C—two phrases and D—a group of syllables, black arrow is the hypothetic opening hemisyllable movement and grey arrow is the hypothetic closing hemisyllable movement).
Song recording:
Male specimens are collected from
Turkey
,
Niğde
, Çamardı, Üçkapılar dağı,
N 37°50.39’
,
E 034°58.19’
,
1981 m
,
24.VII.2017
, leg.: H. Sevgili, D. Sirin, A. Mol & M. S. Taylan and the calling songs are recorded from two males at 28 ˚C in the room conditions (by D. Şirin and M.S. Taylan).
Description of song:
Totally 13 records from two males were examined. The calling song consists of phrases (
Figure 1B, C
), which have quite variable durations. Phrases structure is different from all other species in the genus and comprises approximately
triple syllables group series
. Phrase duration varies between 1.59 and 17.12 s (4.35 ± 1.86) and each phrase contains 29–121 (62.44 ± 8.7) triple syllable groups. However, phrases generally begin with double syllable group and last with quadruple syllable group. In a triple syllable group, syllable durations are quite similar, but have different amplitudes (low-middle-high amplitudes; in first, second and third syllable, respectively). Oscillographic analyses show that triple syllables group periods durations vary between 43.92 and 82.88 ms (52.81 ± 1.16). The first, second and third syllables durations in group last for 12.76–17.87 ms (15.11 ± 1.16), 13.68–18.81 ms (15.66± 1.02) and 12.49–17.47 ms (15.67 ± 1.05), relatively. Each syllable shows almost a standard structure which is formulated as
soft opening hemisyllable + loud closing hemisyllable
(
Figure 1D
). Each closing hemisyllable begins with low amplitude, reaches the maximum level at the midpoint, and at this point it ends by decreasing.